Unnamed: 0 WHO Region ISO3 WHO Country Name City or Locality \
0 0 European Region ALB Albania Elbasan
1 1 European Region ALB Albania Elbasan
2 2 European Region AND Andorra Escaldes-Engordany
3 3 European Region AND Andorra Escaldes-Engordany
4 4 European Region AND Andorra Escaldes-Engordany
Measurement Year NO2 (μg/m3) NO2 temporal coverage (%) Population \
0 2015 23.96 97.853881 2880703.0
1 2016 26.26 96.049636 2876101.0
2 2012 31.64 100.000000 71013.0
3 2014 27.62 100.000000 71621.0
4 2015 26.65 94.554795 71746.0
Average NO2
0 23.96
1 26.26
2 31.64
3 27.62
4 26.65